You mean the HD LCD Viewlix cabinets? You should be able to source one through your local amusement machine distributor. There really isn't much point spending thousands on a legit SF4 setup, especially when your console variant is the same thing. You can even emulate the Taito Type X2 board and run SF4 on a standard PC setup and run that to a cab. There are a lot of ways around it. You'll spend $3000 just on a SF4 kit. Crazy.
Agreed. If you just want the vewlix cab get the vewlix cab. If you want SF4 get the vewlix cab + Jamma adapter and slap a 360 in there. It will cost you a shit ton less.